Impact driver



FIG. 1 is a top perspective view of an impact driver of the present invention;

FIG. 2 is a first side view thereof;

FIG. 3 is a second side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Any broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for an impact driver, as shown and described. 